1974 Johnson 135 HP Outboard Motors Service manual, Page 57Get this manual
CRANKSHAFT, CONNECTING RODS, AND PISTONS
Pistons, cOlUlecting rods, rod bearings and bearing retainers are wearing parts and seat with the operation of the motorBecause of this, it is essential to maintain their original positions at eassemblyMark each connecting rod and cap, piston, and bearing component to assure correct mating when they are emoved, and keep the needles of each cylinder togetheraRemove cOlUlecting rod caps, then roller bearing assembliesA 5-16 inch 12-point deep socket is required for removing and tightening connecting od cap screws
LOWER HEAD ASSEMSL Y